div{
    border: 1px solid black;
}
#menuDiv{
    width: 150px;
}
.head{
    height: 25px;
    background-color: aqua;
    text-align: center;
}
.body{
    height: 100px;
    background-color: #02ff00;
    text-align: center;
    display: none;
}